How to Turn Down the Brightness on Your Computer

Reducing the brightness of your computer screen helps save electricity and battery power. It can also reduce eye strain if you are sensitive to bright back lights. On laptop computers, brightness is controlled by the computer's power settings, although there may also be quick access controls on the keyboard. Desktop computers that use external monitors rely on the controls on the monitor itself to reduce the brightness.

Desktop monitors have built-in controls for reducing brightness.

Laptop Computers

Step

Look on the keyboard for a graphic of a darkened sun, often accompanies with a down arrow. Hold the "Fn" or "Function" key and press this sun key to reduce brightness. If you do not see this key, skip to the next Step.